I know this topic is getting beaten to death but I'm just trying to get all of the facts before I bring it back to the transmission shop
I have a 2016 Silverado 1500 with the 6 speed transmission. Around 94,000 miles, and exactly a year ago last week, my transmission blew after dealing with the shudder, late shifts, weird down shifts, etc. Everything I read on forums was saying that the stock torque converter is trash and eventually spits out bits of metal into the transmission and that's what causes it to go.
I had the transmission rebuilt and the torque converter replaced - I don't know how transmission shops work or what their guys know, I'm sure there are some TSBs out there about this issue, but I told them this seems to be fairly common and that it's my understanding that the torque converter causes the issue so I asked them to not replace it with an OEM one.
My original transmission and torque converter lasted 7 years and 94,000 miles until I started experiencing the bad shuddering and terrible shifts. This rebuild has lasted me 8,000 miles and 1 year and I'm experiencing the same exact thing now. The work came with a 1 year warranty so I took it to the original shop I had it towed to. This shop isn't a transmission shop but it's the only guy in town I've ever dealt with, so they outsourced the work to a transmission shop to be serviced. When I took the truck to them last week, they had it for 4-5 days .. Initially they told me that it wasn't throwing any codes but they needed to "relearn" the transmission, to which I asked if that should have and was done when the transmission was rebuilt. He said it was and I said what would cause this to randomly happen now then? He had no answer. After they "relearned" it they called me and said it was ready to pick up.. So I go to grab it and I asked if the relearn helped. He said, "not really, but it seemed to drive fine before." I said why did you do the relearn then? He said he wasn't the one working on it
I took the truck to another shop to have them take a look at it. They told me again, it's not throwing any codes, but the torque converter is causing the hard shifts and engaging too early or something to that effect.
All I know is this is EXACTLY how it felt shortly before my transmission blew last year, and I explained that to everyone I spoke with at all of the shops.
I called the shop that did the original rebuild and explained everything to him. He seems like he doesn't believe me, but wants me to drop it off Monday so he can take it for a drive.
So is there a certain torque converter that can fix this? Is it something in the computer that is causing it? Is it the transmission? If I somehow get this guy to cover a rebuild again, or at least a torque converter replacement, is there something specific I should ask for?
I don't think this thing will last me another month, and I dropped $4,600 on the original rebuild, I can't swing that again less than a year later..I need this thing done right. Any tips?